Home / 218,723.80-328,085.70-197,296.60

Finding the Fourth Proportional to 218,723.80, 328,085.70 and 197,296.60

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Solution

The fourth proportional to 218,723.80, 328,085.70 and 197,296.60 is: 295,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,723.80 : 328,085.70 = 197,296.60 : x
  2. Step 2: Convert to fraction form
    218,723.80/328,085.70 = 197,296.60/x
  3. Step 3: Cross multiply
    218,723.80x = 328,085.70 × 197,296.60
  4. Step 4: Simplify right side
    218,723.80x = 64,730,193,118.62
  5. Step 5: Solve for x
    x = 64,730,193,118.62/218,723.80
  6. Step 6: Final answer
    x = 295,944.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.